3RT2026-1AH20

A 48V AC coil is a relatively low control voltage level, suitable for applications with strict requirements on the risk of coil inductance, or for situations where existing control circuits already use a 48V configuration.

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Siemens 3RT2026-1AH20 Power Contactor 48V AC 25A 11kW

Product Positioning

The 3RT2026-1AH20 is a SIRIUS 3RT2 series S00 frame three-pole contactor. The AC-3 version is rated at 25A and 11kW at 400V, while the AC-1 version is rated up to 40A. The control coil is specified as 48V AC, 50/60Hz dual-frequency, representing a lower voltage level coil option in the series. It features 1 NO + 1 NC auxiliary contact, and both the main and auxiliary circuits use screw terminals. It is suitable for distribution panels that already use a 48V low-voltage design for the control circuit, or for applications where a lower coil circuit voltage level is desired.

Core Product Advantages and Features

48V AC low voltage coil

The control voltage level is lower than that of a typical 110/220V coil, making it suitable for direct use of existing 48V control circuits without the need for additional transformers.

50/60Hz Dual-Frequency Applicable

The same coil can be used in 50Hz or 60Hz power supply environments, offering high flexibility for cross-regional use.

1NO+1NC Built-in Auxiliary Contacts

Without the need for external auxiliary modules, a set of normally open and normally closed signals can be directly obtained for feedback or interlocking.

AC-1 rated 40A

The rated current can reach 40A under the resistive load category, and the selection flexibility is better than simply calculating based on AC-3.

project	Specification
Product Model	3RT2026-1AH20
Product Type	Siemens SIRIUS 3RT2 series power contactor, S00 frame, 3-pole
Rated current (AC-3, 400V)	25 A
Rated power (AC-3, 400V)	11 kW
Rated current (AC-1, 400V)	40 A
Control coil voltage	48 V AC, 50/60 Hz
Auxiliary contact	1 NO + 1 NC (built-in)
Terminal type	The main circuit, auxiliary circuit, and coil all use screw terminals.
Insulation voltage (Ui)	690 V, pollution level 3
Mechanical life	10 million cycles
External dimensions (width × height × depth)	45×85×97 mm
Applicable Standards	Compliant with IEC 60947-4-1

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